Also, Remember that you can solve the puzzles from the League online on the Sudokucup Guest League page with a 24h delay.
Today’s Sudoku is pretty tricky. There’s a bit of narrow logic in between thats difficult to see. I’ve been playing around with many Knight-related ideas recently, and I like this one more than my Galloping Horses variant clarity-wise. At least I don’t think it needs pictures to explain things 😛
Rules – Follow Sudoku rules. Use the Anti-Knight restriction i.e. treating the digits as Knight pieces in chess, same digits cannot attack each other. But the digits that never appear in a shaded cell are exempt from the Anti-Knight restriction. Alternatively, any digit that appears even once in a shaded cell needs to follow the Anti-Knight restriction throughout the grid.